Air and vacuum release valve



FIG. 1 is a front view of an air and vacuum release valve showing my design;

FIG. 2 is a back view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines shown in the figures are included for the purpose of illustrating portions of the air and vacuum release valve and form no part of the claimed design. 

CLAIM The ornamental design for an air and vacuum release valve, as shown. 